Durable Lightweight Polyurethane Tube - Designed for dry applications where abrasion is a factor. Provides longer hose life and lower operating costs versus rubber or PVC hoses. Transparent Construction - "See-the-flow." Allows for visual confirmation of material flow. Easy Slide Helix - Rigid helix design protects hose tube from cover wear, and allows hose to slide easily over rough surfaces. Easy-to-handle. "Cold-Flex" Materials - Hose remains flexible in sub-zero temperatures. Oil Resistant Polyurethane Tube - Resists most animal and petroleum based oils.